Signments



(No Mbdel.)

H. A. GANDRIAN. BARBBRS 08818.@

Patented sept. 18,1888.

UNITED STATES HERMAN A.

OANDRIAN, OF CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE AS- SIGNMENTS, TOHENRY PULVER, OF SAME PLACE.

BARBERS CHAI-E.V

-SPECIFICATION forming part of Letters Patent No. 285,109, datedSeptember 18, 1883.

Y Application filed September 5, 1882. (No model.) i

To @ZZ whom, it may concern,.-

Be it known thatI, HERMAN A. CANDRIAN,

of Chica-go, in the county of Cook and State of Illinois, have inventedcertain new and useful Improvements in Barbers7 Chairs; and I do herebydeclare that the following is a full, clear, and exact descriptionthereof, reference being had to tlie accompanying drawings, and to theletters of reference marked thereon, 10 which form a part of thisspecification.f

My invention consists in certain improvements in barbers lchairs, aswill be hereinafter described and claimed.

In the accompanying drawings, Figure 1 represent-s a front perspectiveview ofthe entire chair with portions of it broken away to show theseat-adjusting attachment; Fig. 2, a rear perspective View of the backof the chair; Fig. 3, an elevation and cross-section ofthe groovedportion of the back with the spring-pawl; Fig. 4, an end elevation andcross-section of the head-rest and standard detached; Fig. 5, an

end and side elevation and sectional view of the spring-pawl. Fig. 6represents an elevation of the toothed standard detached; Fig. 7, anelevation of the pedal-shaft, Fig. 8, a sectional end elevation of thepedal-shaft; Fig 9, side and endelevation and cross-section of one ofthe pivot-brackets; Fig. 10, va plan of the spring-pawland guide-boX;Fig. 11, an elevation of the guide-box; Fig. 12, a vertical section ofthe pawl-head, and Fig. 13 a vertical cross-section of the pawl andguide-box. Corresponding letters in the several igures 3 5 of thedrawings designate like parts. A denotes the base of the chair, and Bthe seat that is pivotally connected to the base A in any usual mannerfor the chair-seat to have a tilting movement thereon. 4o -O is theback, and D the arm-rests, which are rigid with the chair-seat. centralrail, a, and the top rail, b, of the chairback C are grooved forinserting' and guiding the standard E of head-rest F, and an iron plate,c, is secured against the top rail, a, for holding such standard E inits groove. The standard E is slotted fromv near the head-rest to itsbottom end, and a slotted plate, d, having ratchet-teeth, is sunk intothe front face of 5o such standard, and is secured therein by woodscrews. A leaf-spring, e, is placed in a recess The vertical `in theslotted portion of rails c and b, and is vsecuredwith its lower end bywood screws. The upper end of this leafspring is provided in its middlewith a screw-tapped boss, f, for coupling the screw-end of the shank ofa knob, i g, and to each side of such boss pawl-teeth are formed to theedges of the spring, which fit into the ratchet teeth of plate 61,. andare `forced by the spring e to engage therewith.-

4The shank of knob g projects through the slot `of standard E andtoothed plate d in a manner that it will not interfere with a slidingmovement of such standard in its groove, and that the spring e can bedepressed and the teeth thereon disengaged from the toothed plate d byapressure against such knob. During transportation of the chair the knobcan be unscrewed, to prevent its being bent or broken, and it can bereadily attached again when the chair is to be used.

The advantages over former devices, that were exteriorly secured againstthe back of the chair, and were exposed to frequent. break ages, of thisdevice, in which the entire locking mechanism is concealed andprotected, cepting the operating-knob, that can be removed, will bereadily seen.

S is a shaft having conical end journals, which are pivoted in conicalholes of brackets G. These brackets G are each formed with flanges orears c c2, provided with screw-holes a, through which are passed woodscrews, by means of which said brackets are secured against the innersides of the base A. Vithin an extension of each flange or ear, are theconical holes at, within which the conicalended journals ofthe shaft Shave bearing. As the conical ends of the shaft-journals become worn inuse,the position of the brackets G can be readily adjusted upon saidbase, thereby furnishing compensating bearings that will provide for thetaking up of any lost motion of the shaft-j ournals therein, and thuswill prevent rattling. This shaft S has cast to near one end a pendentpedal, 71, and to near its oppo site end a vertical arm, i.connecting-link, j, is coupled to the end of a sliding pawl, K, which isinclosed in an oblong frame, H, composed of two plates, Zand m. Theplate has two lugs, fn, between which the head of the pawl. is guided,and also a This arm t', by arectangular end lange, 40, for securing theframe by wood screws against the front crossbrace of base A. Plate m hasa rectangular end flange, p, which, together with the plates Z and m andthe lugs fn, forms the guide-loops for the standard ratchet-bar I. Theforward ends of plates Z and m have lugs q, that joint on the centerline of the frame and forni the guide-hole for the cylindrical shank ofpawl K. The head of pawl K is square, with its end beveled to correspondwith the bevel of guide-lugs n, and this beveled faceis provided with aseries of V-shaped teeth. The shank of the pawl K is surrounded by aspiral spring, r, which with one end presses against the end lugs, q,and with its opposite end against the head of pawl K. The ratchet-bar Iis pivoted with its upper end between two lugs of a plate,

s, that is secured under the front of the seat. rIhe upper half of thisbar I is square, and its lower half is prisniatic or triangular, so asteenter the similarly-shaped guide-loop in frame H, and has V-shaped teethto the one of its three sides that comes in contact with the beveled andtoothed end of the pawl K, so as to be engaged and locked thereby at anydesired elevation. rlhe advantage of this beveled engagement of the pawlAwith the ratchet-bar is that such pawl at the same time will act like awedge, and will press the bar I into one corner of its guide-loop, andwill thus prevent all rattling noise. Y

The pedal h is in a position at one side under the rear of thechair`where it is most eonvenient for the barber to reach it with hisfoot whenever he intends to change the inclination of the chair. Byplacing his foot upon the pedal the pawl K will be pulledaway from theratchet-bar, when the seat can be tilted to the desired angle, andthen,by releasing the pedal again, the pawl K will be pushed again intocontact with the ratchet-bar I by the spring r, and will lock the seatto be rigid with the base.

The teeth on the ratchet-bar I and pawl K' being V-shaped, they willlock-much closer than more square teeth, and will not permit any lostmotion or play.

\Vhat I claim is- The herein described locking device for barberschairs, consisting of shaft S, having pedal h and arm c', ofconnecting-link j, bevelended pawl K, frame H, spring i', and ratchetbarI, constructed as described, whereby it may be connected to the seat,the whole being constructed and arranged substantially as shown anddescribed.

In testimony that I claim the foregoing as my invention I aflix mysignature in presence of two witnesses.

HERMAN A. CANDRIAN.

lVitnesses:

EDWARD WEsTLilKn, RIcHD. G. SCHMID.

